Answer to Question #53012 in Physical Chemistry for fed

Question

experiment, 12.0dm3 of oxygen, measured under room conditions, is used to burn completely 0.10mol of propan-1-ol. What is the final volume of gas

Answer 1

CH₃-CH₂-CH₂-OH+ 5O₂ = 3CO₂ + 4H₂O
For 1 mole of propan-1-ol it isrequired 5 moles of O₂;
For 0.1 mole – X moles of oxygen;
X = 0.1 x 5/1 = 0.5 moles of O₂;
1 mole of O₂ has volume 22.4 L;
0.5 moles – Y L;
Y = 0.5 x 22.4/1 = 11.2 L (of O₂);
The final volume of O₂ is: 12-11.2 = 0.8 L;
Answer: 0.8 L